Transmission-gearing for motor-cars.



J. 0. MIGHAUD.

TRANSMISSION GEARING FOR MOTOR CARS. APPLICATION FILED NOV. 10, 1910.

993,862. Pa ented May 30,1911. h

UNITED STATES PATENT or fice;

roses osenxo MICHAUD, orronrr KENT, meme.

IRANSMiSSION-GE mm a son moron-cuts.

To all whom it may concern:

- Be it known that I, JOSEPH O. Mien-ion, a citizen of the United States; residing at Fort Kent,'inthe county of Aroostook and State of Maine,'have ii ventedfleertain new and, useful Improvements in Transmission- Gearing for. Motor-Cars; and I do hereby declare the following to be a'full, elear,-und exact description of the invention, such as will enable others skilled in? theart to which it'upj iertains to make and use the same.

Tlnsinvention relates to improvements in transmission gearing; and particularly to (lGVlCS USed"9I1- motor cars; It is compact in form, and: inrthei particular type illustratetl four :forward'genr ratios and areverseere provlded.

The. device is exceedingly" simple and in expensive ,t o 1 rianufat-lure. compared with the present transmissions commonly in use on motor cars,

With;tlie aboyeiand other obj acts in view,

the inveiltitm" re'sidesin the. novelzfeatures of construction; eoinbination sn formations: and

arrangementsof. ;p:irtsto. uhereinafter.- more ,fully described,- vcl aimedand illustrated end of theshalt 9 is h0llow having the- Figure l is n-partial vertical; seetional view Referring to e the drmvings' by cha ructers of refe1'enee,'the numeral l represents a. cup

gear; having two sets of internally out teeth 2 and 3,. The gear is bolted n a suitable manner ton shaft 4, terminacingin a universal joint 5, from which extends a square propeller shaft (3. A lever 7 terminating in a journal e surrounding the shaft 4. is providedto supportthecupfgearl, and to move it when desired inn vertical plane. A shaft 9, extending'vvithin the cup gear 1, has' its inner; end terminating in a, positive member 10, whichit .is. possible-to engage with thejopposite memberiof. the clutch 11 provided within the said-gear. H Three gears, 12, 13 and 14, are fixed on-tlle sha ftQ, di rectly. back of thez positive clutch 10, said gears .being prp ressivein size. The outer opening of square section of a suitable size to receive the square shaft 23, terminating in one member of theclutch 20. On-the specificationofLettersfatent- Patented May 30, i911. Application filed. November 10, 1910. Serial No. 591,732. i

outer endof the shaft Qis mounted a eollm 21, onwhlch acts a yoke 22,.for sliding said shaft m its bearing 19 and on the shaft 23. The reversegear 15 is mounted on a shaft 16 and suitably journale'd at 17 in the cross piece 18. r

' 'The operation ofithe device is as follows:

With'the clutch 20 in positive position and the engine rotating, the sli'afti) will re 'olve,

being driven" tlirou hl the "medium of the 'also revolve at thesainfe rate of speed, trans mitting its rrotetionftlirou h the universal joint 5 end the present; 5 iaft 6, '-;and"s'o on to the" rear1g'aitle 'ofj the ear. :This' is the. position for "the fourth" for high, speed of the m n-and is 'a direct vdrive; withno gear reductions fromlthej'en'gine direct to the propeller shaft, fi."-'l o .olitnin the jfthi'ee other forward {speeds' hnd "reverse; :the 1 cup gear is moved" int-a ,verti't 'al plane; and Fee gears on the-shaft 9 '1noved out-and :in as required.

goers, the gear 12is moved out by means of the yoke=22 end-into alineinent with the internall'y xcut 'geer 3;;t he cup gezir' theiflbeing slid in zr'vertica'l plane,- by 'means' ofthelever 7 until the gears'3 and more broughtinto mesh." To'obtai'n the second speed, a similar operation-is performed, except that the. gear 13-is bronght into alinement witlr'thegear 3 and "similarly engaged. To obtain j the thirdspeed, as llustrated in'Fig. 2, the same operation 'is performed, except that" the gear 1. is slid into alinement with the gear 3 and brought into mesh. 'To'obtuin the reverse'speed, the shaft 9 isnslid outuntil the positive 'oluteh .10 is disengaged from the positive member "11, the gear 1 2'still .beingin mesh with-the. gear 15, the on gear then 'b'eing slid-up in the opposite directionfrom that previously nsed" until the internally. '{eut-gear 2 meshes-with the gearklii '7 i 'I. "i. Having full'y descrihedf my? invention, wheel r} aim-as new end desire to protect by Iretterstietent'f'isr- Inge transmission-gee scribed,"-"ashaft,bicep-gen! internally out teeth inou'ntedfonJthe end thereof,'. means for shiftingfsliid gearm; a trensverseplanea univezsal' oint'm the ving 'a" set of shaft to ti'ansmit rotntion through various angles a dnven memlzer, a, square shaft with means for connectmg or dlseonnectlng "the same with a source of power, an internally'" squared sleeve slidable on the said square shaft and suitably journaled in. a

verse geanmounted on theinner end of the shaft and meshing with the smaller one of 1; e coneears a second set of internallv 7 cut teeth mounted in the the. cup gear to mesh with the said reverse gear when the said driven member is to be reversed, a positive clutch member formed on the inner end of the slidable sleeve; an opposite clutch member formed on the cup fear, anda collar mounted on the outer en of the slidable sleeve, together with an operating yoke en-- gaging said eoliar, substantially as and for the purposes set fort-h.

In testimony whereof I afiix my signature in'presence of two \vvitnesses.

OSEPH OSARIO MlCHAU-D. Witnesses: ARTHUR J. BADEAU, I v

A. V. Comm. 

